Managing the commons / 
edited by Garrett Hardin and John Baden. 
 - San Francisco :  W. H. Freeman,  1977. 
 - xii, 294 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0716704765 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental policy.